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If you have 10,000 grams of a substance that decays with a half-life of 14 days, then how much will you have after 56 days?

Round to the nearest whole number.

User Kirin Nee
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2 Answers

6 votes

Answer:

625

Step-by-step explanation:

User Phillip Senn
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12 votes

Answer: 625 grams

Explanation:

14 goes into 56, 4 times.

10,000÷2=5,000 - first half life

5,000÷2=2,500 - second half life

2,500÷2=1,250 - 3rd half life

1,250÷2= 625 - 4th half life

Note: don't type "grams" after 625, just type "625".

User Chris Koston
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